Channel 4 Action News learned the calendar had been handed over while trying to gain access to the mayor’s calendar, and now the city is taking the battle to court.

The Open Records Office ruled in Channel 4 Action News’ favor, and on Tuesday, WTAE learned the city filed an appeal with the Court of Common Pleas.

Channel 4 Action News was prompted to ask for the mayor's calendar after an investigation that led to former city Police Chief Nate Harper pleading guilty to charges of conspiracy and failing to file tax returns. The calendar could show who the mayor met with and his daily activities during the federal probe into his administration.

The city argues the mayor’s calendar is not a public record since it’s intended for Ravenstahl’s personal use and only meant to be shared with his staff.

But that begs the question as to why the calendar would be of interest to investigators looking into the administration.

This is the first time the city has argued that the calendar is an investigative record, and as a result, exempt from disclosure under the Right-to-Know Law.

When asked about the calendar, the mayor has deferred questions to City Solicitor Dan Regan.

Mayor-elect Bill Peduto said he would honor the state’s Office of Open Records decision and would not plan to pursue any appeal.